Tube Rolling | Luxman CL-38uc


Hey guys!

Was wondering if I could get your advise about tube rolling on a Luxman CL-38uc.
http://www.luxman.com/product/detail.php?id=27

I’m trying to avoid having to change all Tubes (I want to change them for NOS Tubes).

Since I won’t be using Phono or Tone Controls.
I will just be using the Balance Line In and Line 1/2 Out.

From what I can tell from the schematic (see below) I only would need to change the ones enclosed in green.

Here are the schematics for the CL-38uc Pre-Amp per Luxman: https://drive.google.com/file/d/1pzkwm9U4JIDqbYN-KUmwtvVAFiipUlOG/view?usp=share_link

 

 

My questions

- Is my assumption accurate? Or do I need to change other ones?

- Can I use other type of tubes in place of the 12AU/ECC82?
For example I have plenty of ECC83s/12AX7 If so, is there any precautions I need to be aware of?

Any help is appreciated,

Thanks!

jfandr147
Post removed 

I removed that horrid sounding 12au7 JJ tubes, and put Genalex Gold Lions instead. Much better sound. Very smooth. The only drawback is the cost.

Mullard 12au7 are great sounding smooth tubes $25 USD ea.

Telfunken ECC82 12au7 $80 each 

 

For me my favorite 12AX7 has been the Telefunken Smooth Plate NOS or even the ribbed plate. For the 12AU7 I've been happy with the Telefunken ribbed plate or a Mullard NOS.